Home / 198,205,220.40-297,307,830.60-52,661,245.20

Finding the Fourth Proportional to 198,205,220.40, 297,307,830.60 and 52,661,245.20

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Solution

The fourth proportional to 198,205,220.40, 297,307,830.60 and 52,661,245.20 is: 78,991,867.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,205,220.40 : 297,307,830.60 = 52,661,245.20 : x
  2. Step 2: Convert to fraction form
    198,205,220.40/297,307,830.60 = 52,661,245.20/x
  3. Step 3: Cross multiply
    198,205,220.40x = 297,307,830.60 × 52,661,245.20
  4. Step 4: Simplify right side
    198,205,220.40x = 15,656,600,567,106,666
  5. Step 5: Solve for x
    x = 15,656,600,567,106,666/198,205,220.40
  6. Step 6: Final answer
    x = 78,991,867.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.